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Service instructions
for heating engineers
Electric immersion heater EHO
part no. 7265 124,
part no. 7265 197 and
part no. 7265 198
Electric immersion heater EHO
5692 415 GB
3/2001
Electric immersion heater EHO,
installed in Vitocell−V 300, type EVI
File in: service folder or keep separate from the equipment
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Table of Contents
Summary of Contents for Viessmann EHO
- Page 1 Service instructions for heating engineers Electric immersion heater EHO part no. 7265 124, part no. 7265 197 and part no. 7265 198 Electric immersion heater EHO Electric immersion heater EHO, installed in Vitocell−V 300, type EVI 5692 415 GB 3/2001...
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Page 2: General Information
Work requiring the control unit to be opened must not subject internal components to electrostatic discharges. Applicability Electric immersion heater EHO acc. to DIN VDE 0700 Part no. 7265 124 Part no. 7265 197 Part no. 7265 198 for installation in... -
Page 3: Table Of Contents
....................... . . H Electric immersion heater EHO, part no. 7265 124, for Vitocell−V 100, type CVA... -
Page 4: Initial Start−Up And Maintenance
¨ Safety instructions The electric immersion heater EHO may only be taken into use after the DHW cylinder has been properly filled and is under operating pressure. Only open the heating water connections after the DHW cylinder has been de−pressurised. -
Page 5: H Changing The Thermostat Setting
3. Switch on the mains power. 4. Commission the electric immersion heater EHO and monitor the initial heating up. 5. Check all heating modes (electric immersion heater EHO and possibly heating by boiler). -
Page 6: Resetting The High Limit Safety Cut−Out
The high limit safety cut−out must be reset, if it has been activated (switch−off point: 100 ºC +0 K 1. Isolate the electric immersion heater EHO supply cable and safeguard against re−connection. 2. Remove the cap. 3. Press reset button A on the thermostat/high limit safety cut−out. -
Page 7: Electrical Connection
Additional information Electrical connection ¨ Safety instructions Observe the relevant DIN standards and VDE regulations (in particular VDE regulation 0100) as well as the technical requirements of local energy suppliers and water authorities, and all other local regulations. Provide a facility in the electric immersion heater power supply cable which can separate all conductors from the mains supply with at least 3 mm contact separation except the neutral conductor... -
Page 8: Parts List
Additional information Parts list Electric immersion heater EHO, part no. 7265 124, for Vitocell−V 100, type CVA When ordering spare parts: Quote the part and serial no. of the equipment (see type plate) and the item no. of the required part (as per parts list). - Page 9 Additional information Parts list (cont.) Electric immersion heater EHO, part no. 7265 198, for Vitocell−B 100, type CVB, and Vitocell 333, type SVK When ordering spare parts: Quote the part and serial no. of the equipment (see type plate) and the item no.
- Page 10 Additional information Parts list (cont.) Electric immersion heater EHO, part no. 7265 197, for Vitocell−V 300, type EVI When ordering spare parts: Quote the part and serial no. of the equipment (see type plate) and the item no. of the required part (as per parts list).
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Page 11: Commissioning/Service Report
Additional information Commissioning/service report Initial start−up Maintenance/Service Maintenance/Service Maintenance/Service Maintenance/Service date: Maintenance/Service Maintenance/Service Maintenance/Service Maintenance/Service Maintenance/Service date:... -
Page 12: Declaration Of Conformity
D 35107 Allendorf, declare as sole responsible body, that the product with the type code Electric immersion heater EHO for DHW cylinder Vitocell−V 100, type CVA and Vitocell−B 100, type CVB, Vitocell−V 300, type EVI, and Vitocell 333, type SVK...